I think the author does say something negative about git, just doesn't say it in a negative way. "When a git user runs into a problem, they look at the tools they have on hand and ask, “how can I combine these ideas to solve my problem?”"

The negative here is that A) git user has to know about all the tools, which takes a long time, and then solving the issue requires quite a bit of thought.

That's one of the problems about git is that as a result of the massive flexibility there doesn't seem to a "standard" way to do things, even basic things. Each org has to develop their own processes which is annoying and difficult for new people in the org.